By a News Reporter-Staff News Editor at Life Science Weekly -- New research on Chalcogens is the subject of a report. According to news reporting originating from Giza, Egypt, by NewsRx correspondents, research stated, “The development of cheap and efficient electrocatalysts for the oxygen reduction reaction (ORR) is vital for the immediate commercialization of fuel cells which are still limited by the high cost and low performance of the utilized commercial Pt-based electrodes. As a promising alternative, this study reports on the synthesis of hierarchical iron-doped silver lotus flowers (AgFelotus) by a facile chemical procedure as robust and efficient ORR electrocatalysts.”

Our news editors obtained a quote from the research from Cairo University, “Succinic acid was used as a structure directing agent to tune the morphology of undoped and iron-doped silver particles. In the absence of succinic acid, ball-like silver particles were obtained, while using 2 mM succinic acid led to peony-like flower structures. The doping of silver peony-flowers with iron resulted in lotus-like flower structures with high electrocatalytic activity for ORR together with outstanding tolerance against poisoning with various hydrocarbon (HC) impurities, in situ generated during fuel cell operation, as well as different fuels from anodic crossover. AgFelotus exhibited a superior ORR activity with more than 40 times higher stability than the commercial Pt/C catalyst in alkaline media.”

According to the news editors, the research concluded: “This substantial performance enhancement is attributed to the unique lotus-like flower structures providing more electroactive surface sites, in addition to the iron dopants which facilitate ORR charge transfer.”

For more information on this research see: Hierarchically structured iron-doped silver (Ag-Fe) lotus flowers for an efficient oxygen reduction reaction. Nanoscale , 2018;10(15):7304-7310. (Royal Society of Chemistry - http://www.rsc.org/; Nanoscale - http://pubs.rsc.org/en/journals/journalissues/nr)

The news editors report that additional information may be obtained by contacting G.A. El-Nagar, Chemistry Department, Faculty of Science, Cairo University, Giza, 12613, Egypt. Additional authors for this research include I. Lauermann, R.M. Sarhan and C. Roth.

The direct object identifier (DOI) for that additional information is: https://doi.org/10.1039/C8NR00020D. This DOI is a link to an online electronic document that is either free or for purchase, and can be your direct source for a journal article and its citation.

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2018, NewsRx LLC

CITATION: (2018-05-08), New Findings from Cairo University Describe Advances in Chalcogens [Hierarchically structured iron-doped silver (Ag-Fe) lotus flowers for an efficient oxygen reduction reaction], Life Science Weekly, 1228, ISSN: 1552-2474, BUTTER® ID: 015613552

From the newsletter Life Science Weekly.
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